A randomized 25 question test from a pool of 761 questions, good luck!
There are several layers in the DCS architecture. Which of the levels below would have direct control over the ESD system?
Which answer below is best described as the RS-485 standard for voltage range to receive a "Mark"?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of a coil to the slave device?
Any SCADA system must adhere to universal standards which allow smooth communication over international boundaries. Which of the standards below would have incompatibility between different hardware vendors components?
There are several fields in an Ethernet message frame structure. Which of the answers represent the content of the FCS field in the Ethernet message frame?
Redundant capability is critical for any DCS. Which of the availability of redundancy below would have redundant I/O, controllers and networks?
Communication that is wireless in a SCADA system is common. Which of the communication methods below would be best defined as one that is a last resort, when no other means of communication is available?
IPv4 has several distinct classifications. Which of the answers below would best describe how those classifications are determined using the address?
Ethernet network components provide several ISO layers of transmission control. Which of the network components below has transmission controls only on the ISO physical layer?
Software for programming or configuration is an integral part of any HMI. Which of the interfaces below can be best described as having the operators access the various HMI subsystems to interact with a process control system?
Model based network devices are at the user level of Ethernet/IP. Information of a capabilities or features of a specified device would be contained in which of the text files below?
Which of the answers below best describes the transmission mode of data between two DCE devices?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "D"?
The addition of BCC to the message frame increases the efficiency of detecting errors in transmissions. which one of the error check systems employs a calculated total by the receiver in comparison to the total of the received data?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in the guardianship HMI operating system?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses voltage levels to represent logic states?
In the protocol specifications of Modbus, there are 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the input registers addresses?
Which of the error detection methods below best relates to an "effectiveness of 90%"?
There are several different ways to let an operator know about an alarm in any HMI. Which of the answers below would best be described as a vibrations given off by a device?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the hub interacts with?
Which of the components below best represents the letter "A"?
SCADA systems have been integrated with various industrial processes. Which of the answers below is best defined as allowing control of remote pump and compressor stations?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below can best be described as the movement of process conditions from normal to upset, requiring operator action at some point in the future?
Which of the error detection methods below best relates to the term "BCC"?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to read the input status of coils on a slave device ?